Munging data is a term used to describe the process of looking at raw data and cleaning it up in order to make it ready for analysis. This can be either manual or automated, depending on the circumstances.
Munging data may be needed to address a number of issues:
For Example: If you have a large volume of raw data that needs to be processed, you may want to mung it so that you can look at it more easily. You might also need to munging data in order to comply with certain regulations.
Another example of munging data would be if your organization has collected lots of new data over time and doesn’t know where to begin processing it. Munging could help you organize the data and identify which files need to be transferred into a database or analyzed further.
Data Munging Is A Real Thing

However, not all munging is necessarily bad. For example, if your organization needs to comply with regulatory obligations or has other legal requirements, then processing the data could involve munging as well.